Fox News Chris Wallace will moderate the third and final presidential debate in Las Vegas on Oct. 19. Trump, though, has been preemptively sounding the alarm on a rigged debate system for the past several weeks. View photos Trump talks to Cooper during a town hall event in Columbia, S.C., on Feb. 18, 2016. (Spencer Platt/Getty Images) More After Matt Lauer faced harsh criticism over his performance as host of NBCs Commander in Chief Forum earlier this month, Trump predicted the moderators of the upcoming debates would be harder on him . Everyones saying that [Lauer] was soft on Trump, he said